Forest stand area surveying with hand-hold GPS receiver
Ke Zhou · Cehui kexue · 2003
Through adjusting the coordinate data surveyed by hand hold GPS receiver with the principle of rank defect free network adjustment, the aim of author's study is to increase the precision of hand hold GPS when surveying the block area. The experiment in this paper proved that the method of defect free network adjustment evaluates each point's error, and the program wrote in Visual Basic by the author can quickly finish the adjustment, area calculation and precision evaluation.The error created by hand hold GPS can be controlled and the precision is increased through surveying distances with ruler. So the surveying can be widely used in surveying and supervision of forest land variation.